Metal knockdown phonograph horn and method of making the same



L. J. GERSON.

METAL KNOCKDOWN PHONOGRAPH HORN AND METHOD OF MAKING THE SAME.

APPLICATION FILED APF(.6,1920.

1,403,314, Patented Jan. 10, 1922.

- ing toward the bottom thereof; Fig. 2 is a LQ'U'IS J'AYG'ERS ON, OF PALISAIDES, NEW YORK, ASSIGNOR WOOD, 01 NEW YORK, N. Y.

METAL xnocxnown rnonooaarn Roan AND union or maxmo THESAME.

To aZZ whom it may concern! Be it known that I, LOUIS JAY GERsoN,

a citizen of the United States, residing at Palisades, in the county of Rockland and State of New York, have invented certain new and useful Improvements in Metal Knockdown Phonograph Horns and Methods of Making the Same, is a specification.

, This invention relates to phonograph horns for phonograph structures, the object thereof being to provide an improved metal horn and method of making the same, which can be readily used with a phonograph cabinet, particularly a cabinet of metal construction, such as that shown and described in my contemporaneously pending application, Ser. No. 371,711, filed April 6, 1920, the object of the present improvement being to provide what may be considered a knockdown horn simple in construction, inexpensive to make and readily'assembled without any bolts or similar fastening means.

n the drawings accompanying and forming a part of this specification, Fig. 1 is a perspective view of this improved horn lookof which the following perspective view of the horn looking toward the top thereof; Fig. 3 is a detall'view lllustrating the manner of assembling the sides with the top and 4 is a sectional-view taken on line 44 ig. 2.

Similar characters of reference indicate corresponding parts in the several figures of the drawings.

The present improved horn is particularly I adapted for use in phonograph cabinets and therefore it is. shown of a form which will permit of this use, and comprises a flaring mouth and a narrow neck portion, and is made of four members, a flaring top member 2, a flaringbottom member 3, and a pair of similarly formed flaring sides 4 and 5, all formed of metal and as shown herein of sheet metal. The opposite edges of a pair of these members, shown herein as the sides, are provided with a series of projections or tongues 6 adapted to pass through openings in the other pair of members, as for instance the top and bottom members 2 and 3 adjacent to the edges thereof. These tongues are then bent over and thus secure all four members of the horn rigidly and efliciently together. The neck portion of the horn is provided with outwardly turned Specification of Letters Patent.

Application filed April 8,

hate short of the Patented Jan. 10, 1922.

1920. Serial No. 371,712.

flanges 7 and 8. The sides 4 and 5 termitop and bottom 2 so that the flanges 8 of such sides are below the flanges 7 thereby forming a space or seat for the location of a modulating slide member shown in dotted lines at 9. The flanges 7 constitute a means for supportng and suspending the horn within the cab-' met in the manner shown and described in my contemporaneously pending application. The sides 2 and 3 ofcourse are bent or flared outwardly to conform to the flare of the top andbottom.

By the present improvement I have provided a very simple metal horn, which can be shipped in the flat, that is, one plate or member upon the other since the curved form of the .top and bottom is obtained during the assembling of the members by reason of the fact that in bending over the projections the top and bottom will be made to conform to the flared or tapered edges of the sides. Therefore when the flat plates are received by the dealer or user they can be easily assembled by merely slipping the projections 6 through the openings and then bending them down in the manner shown.

It will be understood of course that the various details may be more or less changed without departing from the spirit or scope of the present improvement, as for instance the projections could be carried if preferred by the top and the sides. s

While various shapes and forms 'of horn may be made by-the present method, I have shown in the drawings, however, .that form and shape of horn that-is most suitable for the cabinet. shown and described in my contemporaneously pending application. and in this form of horn, the top and bottom have greater width at the flaring mouth than the width of the sides and the top edges of the sides have greater curvature than the bottom edges thereof. In other words, in the formation of'a horn havinga curvature substantially resembling that shown in the drawings, the side plates 4 would be cut from the sheet of metal so as not only to have a tapered or flared formation in the direction of their length but also to have curved edges whereupon when the top and bottom plates, likewise cut from the sheet of metal are assembled with'the side plates, the top and bottom plates will conform to the O1 ONE-HALF '10 FRANK W.

bottom and the openings by I and 3,

curved edges of the side plates while the top plates would be cut tohave suflicient flare at the mouth to enable the outer ends ofthe side plates to be flared outward if desired. In other words, the top has greater curvature or concavity than has the bottom, and when formed of sheet metal it will be understood that the top and bottom members may be readily bent during the assemblage thereof with the sides.

I claim as my invention:

1. The method of making a. phonograph horn, which consists in cutting a plurality than the other two, and two thereof having one edge of each provided with greater curvature than its opposite edge, providing two of said members at their opposite edges with projections, and two thereof with corresponding openings, then passing the projec'tions through the openings and simultaneously bending two of the members to conform in shape to the curved edges of the other two members, and then bending said projections thereby to rigidly secure the members together.

3. The method of forming a phono raph horn, which consists in cutting four aring members, two thereof having greater flare than the other two, providingtwo of said members at their opposite ed es with projections and two thereof at t eir opposite edges with openings, then passing the projections through the openings, and then clinching said projections by bending the same upon said last, mentioned members, thereby to cause two of the members to conform in shape to the flare of the other two 1 members.

4. A metal phonograph horn comprising a plurality of plates, a pair thereof having projections at the opposite edges of each,

and a pair thereof having openings at the opposite edges of each for the reception of said projections, said projections being bent over a pair of said plates, thereby rigidly to secure the plates together.

5. A metal phonograph horn comprising four plates, a pair thereof having projections at the opposite edges of each, and a pair thereof having openings at the opposite edges of each for the reception of said projections, said projections being bent over a pair of said plates, thereby rigidly to a pair of flaring side plates having curved edges and flaring top and bottom plates having greater flare than the side plates, said plates carrying cooperating, interlocking means whereby upon assembling the same,

the top and bottom plates will be bent to conform to the curvature of the side plates.

7 A metal phono raphhorn consisting of a pair of flaring si e plates having curyed edges and flaring. top and bottom plates having greater flare than the side plates, the top edges of the side plates having greater curvature than the bottom edges thereof, said plates carrying detachable interlocking means whereby upon assembling the same, the top and bottom plates will be bent trans versely to conform to the curvature of the edges of the side plates.

8. A metal phonograph horn comprising a plurality of plates, a pair thereof having projections at the. opposite edges of each, and a pair-thereof having openings at the opposite edges of each for the reception of said projections, said projections being bent over a pair of said plates, thereby rigidly to secure the plates together, a pair of said plates being shorter than another pair.

9. A metal phonogra h horncomprising a plurality of flaring p ates having cooperating interlocking means, a pair of said plates having less flare than the flare of a companion pair, said first two plates having laterally extending flanges at one end, said last two plates terminating short of theflanged end of said first two plates.

10. A knockdown honograph horn comprising a plurality of plates having cooperating interlocking means for assembling and detaching the plates, a pair of said plates,

terminating short of a companion pair.

11. A knockdown phonograph horn comprising a plurality of plates having cooperating interlocking means for assembling and detaching the plates, a pair of said plates terminating short of a companion pair, and all having laterally extending flanges.

12. A' knockdown phonograph horn comprising a plurality of plates havin cooperating interlocking means for assem ling and detaching the plates, and a air thereof having a laterally extending ange adapted to permit attachment to a cabinet.

13. A knockdownphonograph horn comprising a plurality of plates, some of said plates having projections along certain edges thereof and others having openings along certain edges thereof for the reception of said projections, said projections being bent to secure the plates together.

14. A metal phonograph horn comprising a plurality of plates, certain of said plates having projections at the opposite edges thereof and others having openings at the opposite edges thereof for the reception of said projections, said projections being bent so as to secure said plates rigidly together, some of said plates having laterally extending flanges at one end.

15. A knockdown phonograph horn formed from a plurality of plates having their edges connected, a pair of said plates being I shorter than another pair thereby to permit the reception of a modulating slide member.

16. A knockdown phonograph horn formed from a plurality of plates having their edges connected, certain of said plates being shorter than others thereof and certain of said plates having laterally formed projec-- tions to permit th detachable attachment of said horn to a phonograph cabinet.

17. A knockdown phonograph horn comprising a top and a bottom plate, and a pair of side plates, having curved edges, the construction bein such that upon assembling the top and ottom plates with the side plates, the same will be bent to conform to the curvature of the edges of the sid plates.

18. A knockdown phonograph horn comprisin a top and bottom plate, and a pair of side p ates, all of said plates having cooperating interlocking means, and all thereof being tapered in the direction of their length, said side plates having curved edges, whereby upon assembling the top and bottom plates therewith, the same will be bent to conform to the curvature of the edges of the side plates, a pair of said plates terminating short of a companion pair of plates.

19. A knockdown phonograph horn comprising a top and bottom plate, and a pair of side plates, all of said plates having cooperating interlocking means, and all thereof being tapered in the direction of their length, said side plates having curved edges, whereby upon assembling the top and bottom plates therewith, the same will be bent to conform to the curvature of th edges of the side plates, a pair of said plates terminating short of a companion pair of plates, and a pair thereof having laterally extending projections.

20. A knockdown phonograph horn comprising top and bottom plates and a pair of side plates, all of said plates being tapered in the direction of their length, said side plates having curved edges, the edges of the top and bottom plates belng interlocked with the edges of the side plates and bent to conform to the shape thereof, som of said plates havin at the neck portion of said born a latera ly extendin flan e.

Signed at New ork, 1n the county of New York and State of New York, this third day of April, 1920.

LOUIS JAY GERSON. 

